Bug 2509256 (CVE-2026-17544) - CVE-2026-17544 php: PHP: Arbitrary code execution via out-of-bounds write in bccomp()
Summary: CVE-2026-17544 php: PHP: Arbitrary code execution via out-of-bounds write in ...
Keywords:
Status: NEW
Alias: CVE-2026-17544
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2511423
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-30 12:01 UTC by OSIDB Bzimport
Modified: 2026-08-05 09:18 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-07-30 12:01:12 UTC 
Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4.* before 8.4.24 and from 8.5.* before 8.5.9.
Comment 1 Remi Collet 2026-07-31 12:31:13 UTC 
Notice: Versions < 8.4 are not affected
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